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https://issues.apache.org/jira/browse/HBASE-14089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14628635#comment-14628635
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Hadoop QA commented on HBASE-14089:
-----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12745484/HBASE-14089.patch
against master branch at commit a63e3ac83ffb91948f464e4f62111d29adc02812.
ATTACHMENT ID: 12745484
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{color:green}+1 hadoop versions{color}. The patch compiles with all
supported hadoop versions (2.4.0 2.4.1 2.5.0 2.5.1 2.5.2 2.6.0 2.7.0)
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 protoc{color}. The applied patch does not increase the
total number of protoc compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 checkstyle{color}. The applied patch does not increase the
total number of checkstyle errors
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 lineLengths{color}. The patch does not introduce lines
longer than 100
{color:green}+1 site{color}. The mvn post-site goal succeeds with this patch.
{color:green}+1 core tests{color}. The patch passed unit tests in .
Test results:
https://builds.apache.org/job/PreCommit-HBASE-Build/14785//testReport/
Release Findbugs (version 2.0.3) warnings:
https://builds.apache.org/job/PreCommit-HBASE-Build/14785//artifact/patchprocess/newFindbugsWarnings.html
Checkstyle Errors:
https://builds.apache.org/job/PreCommit-HBASE-Build/14785//artifact/patchprocess/checkstyle-aggregate.html
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/14785//console
This message is automatically generated.
> Remove unnecessary draw of system entropy from RecoverableZooKeeper
> -------------------------------------------------------------------
>
> Key: HBASE-14089
> URL: https://issues.apache.org/jira/browse/HBASE-14089
> Project: HBase
> Issue Type: Bug
> Reporter: Andrew Purtell
> Assignee: Andrew Purtell
> Priority: Minor
> Fix For: 2.0.0, 0.98.14, 1.2.0, 1.1.2, 1.3.0, 1.0.3
>
> Attachments: HBASE-14089.patch
>
>
> I had a look at instances where we use SecureRandom, which could block if
> insufficient entropy, in the 0.98 and master branch code. (Random in contrast
> is a PRNG seeded by System#nanoTime, it doesn't draw from system entropy.)
> Most uses are in encryption related code, our native encryption and SSL, but
> we do also use SecureRandom for salting znode metadata in
> RecoverableZooKeeper#appendMetadata, which is called whenever we do setData.
> Conceivably we could block unexpectedly when constructing data to write out
> to a znode if entropy gets too low until more is available.
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